This system of computers can mine a 23x18 hole from surface to bedrock in only an hour. All resources collected are stored in chests. A secondary robot can be deployed to retrieve the chests from the pit, along with their entire contents. Once the chests have been brought to you, you can pick any minerals you want out of them, bring them to a sorting unit, and have it put them away for you.
Totally automated ComputerCraft mining, retrieving, and mineral sorting system.